False‐positive semiquantitative immunochromatography assays for procalcitonin in three patients with rheumatoid arthritis—A case series

We report three rheumatoid arthritis (RA) patients with false‐positive procalcitonin (PCT) based on semiquantitative immunochromatography assays without infection, but who had negative PCT assay results based on quantitative methods. Immunochromatography was useful for screening; however, other hete...

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Detalles Bibliográficos
Autores principales: Sato, Hiroe, Ito, Satoshi, Nakazono, Kiyoshi, Kurosawa, Yoichi, Nozawa, Yukiko, Nakatsue, Takeshi, Wada, Yoko, Kuroda, Takeshi, Suzuki, Yoshiki, Nakano, Masaaki, Narita, Ichiei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Case Reports
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495766/
https://www.ncbi.nlm.nih.gov/pubmed/32983481
http://dx.doi.org/10.1002/ccr3.2968
Descripción
Sumario:We report three rheumatoid arthritis (RA) patients with false‐positive procalcitonin (PCT) based on semiquantitative immunochromatography assays without infection, but who had negative PCT assay results based on quantitative methods. Immunochromatography was useful for screening; however, other heterophilic antibodies rather than rheumatoid factor were possible to affect, especially in RA flare.

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